If you don't know what Sudoku is yet, boy are you in for some sleepless nights. It's an addictive and challenging game that will drive you mad but keep you itching for more. Sudoku Widget generates random puzzles with four different levels of difficulty, has the option to show when you have entered an incorrect answer, allows for 'pencil' marks for temporary numbers, times your games so you can see how much better (or worse) you are getting, allows for blank puzzles and more...Plus, the best part is, it's free.

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If you don't know what Sudoku is yet, boy are you in for some sleepless nights. It's an addictive and challenging game that will drive you mad but keep you itching for more. Sudoku Widget generates random puzzles with four different levels of difficulty, has the option to show when you have entered an incorrect answer, allows for 'pencil' marks for temporary numbers, times your games so you can see how much better (or worse) you are getting, allows for blank puzzles and more...Plus, the best part is, it's free.